Physics

A track star in the long jump goes into the jump at 12 m/s and launches herself at 20 degrees above the horizontal. How long is she in the air before returning to Earth? (g= 9.81 m/s squared)

I tried using some formulas but I'm using all of the wrong formulas for this question. I can work this out if someone can give me the correct formula to use. :)

Thanks!

1. You know the intial height, and the final height. You know the initial velocity.

hfinal=hinitial + v*sin20*t -1/2 g t^2

solve for t.

posted by bobpursley
2. Thanks! ^^

posted by ac
3. 200

posted by j

Similar Questions

1. Physics

A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0° above the horizontal. How long is she in the air before returning to Earth? (g = 9.81 m/s2)
2. physics

please show me how to do this in steps. A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0degrees above the horizontal. What is the magnitude of her horizontal displacement? (assume no air
3. physics

A ski jumper launches from a ski jump that is oriented parallel to a hill. The jump has a vertical drop of 50 m and the coefficient of friction μ between the skier and the jump is 0.05. The launch point is 5 m above the hill
4. science

A ski jumper launches from a ski jump that is oriented parallel to a hill. The jump has a vertical drop of 50 m and the coefficient of friction μ between the skier and the jump is 0.05. The launch point is 5 m above the hill

Jason and Doug competed in the long jump at a track meet. Jason long jump was 98 inches. Doug long jump was 3 yards. How much longer was Doug jump than Jason Jump? would this answer = to 10 if not please can you show me the steps
6. physics

please tell me if these are correct A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0 deg above the horizontal. What is the magnitude of her horizontal displacement? (Assume no air resistance
7. Physics

A trackstar in the long jump goes into the jump at 12 meters per second and launches herself at 20 degrees how long is she in the air
8. math

please help!!the question is..at track practice,Sheila worked on the long jump.her first jump measured 3 yards,2 feet,8 inches.second jump measured 2 yards,1 foot,10 inches.How much longer was sheilas first jump than her second